Definitions

from The Century Dictionary.

  • Not dull; sharp.
  • To remove dullness from.

from the GNU version of the Collaborative International Dictionary of English.

  • transitive verb obsolete To remove the dullness of; to clear.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • verb To remove the dullness of; to clear.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

un- +‎ dull

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Examples

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